Manual Plunger Valve(Needle Valve)
| DN | 200mm~1200mm | |
| PN | 0.6~2.5MPa | |
| Pressure test | seat | 1.1*PN |
| shell | 1.5*PN | |
| Medium temperature | ≤80℃ | |
| medium | water etc. | |
Brief Introduction
Needle valves (plunger valves) are widely used for flow control or control of flows with high pressure differences.
Thanks to the special inner construction, the flow cross section is circular which allows
for precise control.
The flow is always guided to the center of the connecting pipe where cavitation
bubbles will be formed and restored without damaging the equipment.
Normally, the needle valve closes in clock-wise direction unless otherwise mentioned in the customer’s order.
One-piece body
Designed for cavitation-free operation in all modes of operation
Perforated or slotted optional anti-cavitation cylinder
Piston sealed EPDM, NBR
Flange connection dimensions to EN 1092 or ANSI
Piston: stainless steel
Retaining ring: stainless steel
Crank gear: stainless steel
Valve shaft: stainless steel
Maintenance-free shaft bearings made of bronze
incl. mechanical position indicator
With hand wheel
With four lifting eyes
Note: Other materials are available upon request.
Supply Range
The Scope of Work covers the detailed requirements for the Design, Manufacture , QA, QC, Shop Assembly and Shop Testing, Painting, Packing, Transportation .
On the other side, the enduser or the contractor will pick up the goods at the destination port, delivery at site, storage and preservation, installation, erection, testing and commissioning of the valves .
Valve accessories are also play an important role in our industry.
Advantages
Aftersale Service
For decades, based on our extensive know-how and continuous innovation of products and solutions, we are driven to fulfill this commitment to all our current and future customers.
Our Quality Control Engineers strictly monitor the production at every stage, to ensure a consistently high level of quality, we offer 12 months quality gurantee for each project.
Our 24/7 assistance, customized to any site or remote needs, ensures every client get our satisfactory response.
Installation supervision involves the mechanical and electrical setup of the valve. Commissioning focuses on system integration and testing. We can also provide paid services when necessary.
Troubleshooting is a form of problem solving, kindly pls offer the photos, videos and the operation steps to us, our service department will check and give support asap.
Our service engineer will train the clients’ operator step by step according to the product manual procedures and maintenance steps etc.
We guarantee to supply high-quality and reliable original parts asap by international courier or by air.
Company Video
Welcome to Zhengzhou Pump Valve Co., we are one of the leading manufacturer and solution provider in industrial valves in thermal /hydro power plants, dams ,oil & gas, metallurgy, petrochemical, desulfurization ,water treatment industries etc.
Please watch our company video to have a general idea.
Resource
In order to shorten the communication time ,here attached a company catalog file . You can check our factory information, production lines etc
This is our company’s quality assurance and control process, which confirms that our products are traceable, product quality is controllable, and customer service is satisfactory.
Zhengzhou Pump Valve is top 10 leading manufacturer and solution provider of industrial valves in China founded in 1995, mainly used in power plants, dams ,oil & gas, metallurgy, petrochemical, water treatment etc.
The company boasts a production area of over 30,000 square meters, equipped with advanced facilities, including large CNC vertical lathes and supporting equipment for external processing.
For more information, kindly pls contact us for details.
yes, we offer OEM/ODM service, we support the customized logo, size, package, etc.
We offer 18 months warranty service for factory delivery date by free, and we also supply the valve wearable parts.
Yes, we can share some reference list and project photos after request.
Of course, we offer the inspection test plan and test report after testing before delivery.
- 30% T/T down payment and 70% T/T balance payment after positive test and before delivery.
- 100% irrevocable L/C at sight,
- Others for negotiation